package com.atguigu.gulimall.product.config;

import org.springframework.boot.autoconfigure.cache.CacheProperties;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializationContext;
import org.springframework.data.redis.serializer.StringRedisSerializer;

/**
 * @program: gulimall
 * @description:
 * @author: 江天赐
 * @create: 2022-08-07 11:25
 */
@EnableConfigurationProperties(CacheProperties.class) //将CacheProperties 导入进来
@Configuration
@EnableCaching
public class MyCacheConfig {

//    @Autowired
//    CacheProperties cacheProperties;

    /**
     * 配置文件中的东西没有用上
     * <p>
     * 1.原来和配置文件绑定的配置
     *
     * @return
     * @ConfigurationProperties( prefix = "spring.cache"
     * )
     * public class CacheProperties {
     *
     * 2.要让他生效
     * @EnableConfigurationProperties(CacheProperties.class) //将CacheProperties 导入进来
     */
    @Bean
    RedisCacheConfiguration redisCacheConfiguration(CacheProperties cacheProperties) {
        RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig();
//        config.entryTtl()
        //设置缓存的k、v序列化规则
        config = config.serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(new StringRedisSerializer()));
        config = config.serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(new GenericJackson2JsonRedisSerializer()));
        //将配置文件中的所有的配置都生效
        CacheProperties.Redis redisProperties = cacheProperties.getRedis();
        if (redisProperties.getTimeToLive() != null) {
            config = config.entryTtl(redisProperties.getTimeToLive());
        }
        if (redisProperties.getKeyPrefix() != null) {
            config = config.prefixKeysWith(redisProperties.getKeyPrefix());
        }
        if (!redisProperties.isCacheNullValues()) {
            config = config.disableCachingNullValues();
        }
        if (!redisProperties.isUseKeyPrefix()) {
            config = config.disableKeyPrefix();
        }
        return config;
    }
}
